1、 UL 920002 STANDARD FOR SAFETY Installation, Operation, and Maintenance of Toxic Gas-Detection Instruments FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTIONThis page intentionally left blank. FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTIONUL Standard for
2、 Safety for Installation, Operation, and Maintenance of Toxic Gas-Detection Instruments, UL 920002 First Edition, Dated September 30, 2013 Summary of Topics Adoption of ANSI/ISA-92.00.02-2013, Standard for Installation, Operation, and Maintenance of Toxic Gas-Detection Instruments as ANSI/UL 920002.
3、 This Standard is being issued to update the title page to reflect the reaffirmation of its ANSI approval. No changes in requirements have been made. As noted in the Commitment of Amendments statement located on the back side of the title page, UL and ISA are committed to updating this co-designated
4、 standard jointly after processing according to the standards development procedures by UL Please note that as this is a simple reaffirmation of an existing ISA standard. These requirements are substantially in accordance with Proposal(s) on this subject dated August 11, 2017. All rights reserved. N
5、o part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard “as is“ without warranty of any kind, either expressed or implie
6、d, including but not limited to, the implied warranties of merchantability or fitness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of profits, lost savings, loss of data, or any other damages arising out of the
7、 use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of t he claim. Users of the electronic
8、versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on
9、the purchasers computer system. FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTIONThis page intentionally left blank. FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTIONISA - International Society of Automation ANSI/ISA-92.00.02-2013 (R2017) First Edition Und
10、erwriters Laboratories Inc. ANSI/UL 920002 First Edition Installation, Operation, and Maintenance of Toxic Gas-Detection Instruments September 30, 2013 (Title Page Reprinted: October 13, 2017) ANSI/ISA/UL 920002-2013 (R2017) FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTIONComm
11、itment for Amendments This standard is issued jointly by ISA and Underwriters Laboratories Incorporated (UL). Comments or proposals for revisions on any part of the standard may be submitted to UL at any time. ISBN 978-1-945541-66-7 Copyright 2017 ISA All rights reserved. Not for resale. Printed in
12、the United States of America. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means (electronic mechanical, photocopying, recording, or otherwise), without the prior written permission of the Publisher. The most recent designation of
13、ANSI/ISA-92.00.02 as a Reaffirmed American National Standard (ANSI) occurred on October 13, 2017. Copyright 2017 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and a
14、ll copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the First Edition including revisions through October 13, 2017. The most recent designation of ANSI/UL 920002 as a Reaffirmed American Nati
15、onal Standard (ANS) occurred on October 13, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, (front and back), or the Preface. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be sub
16、mitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights
17、regarding those Standards shall remain the sole and exclusive property of UL. To purchase UL Standards, visit http:/ or call toll-free 1-888-853-3503. FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION1 ANSI/ISA-92.00.02-2013 (R2017) ANSI/UL 920002 October 13, 2017 General Notes
18、 This is the common ISA and UL, Standard for the Installation, Operation, and Maintenance of Toxic Gas-Detection Instruments. It is the first edition of ANSI/ISA-92.00.02 and the first edition of ANSI/UL 920002. The document is a modification of the ISA document to create the equivalent UL version a
19、nd maintain the ANSI approval of this standard. ANSI/ISA-92.00.02 and ANSI/UL 920002 contain identical requirements, and identical publication dates. This common standard was prepared by the (ISA) - The International Society of Automation on September 30, 2013 but is now being maintained by Underwri
20、ters Laboratories Inc. (UL). Note: Although the intended primary application of this standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. FOR UL INTERNAL REFERENCE OR CSDS USE O
21、NLY NOT FOR OUTSIDE DISTRIBUTIONOctober 13, 2017 ANSI/ISA-92.00.02-2013 (R2017) ANSI/UL 920002 2 This page intentionally left blank. FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION3 ANSI/ISA-92.00.02-2013 (R2017) ANSI/UL 920002 October 13, 2017 Preface (ISA) This preface, as
22、well as all footnotes and annexes, is included for information purposes and is not part of ANSI/ISA-92.00.02-2013 (R2017). This document has been prepared as part of the service of ISA toward a goal of uniformity in the field of instrumentation. To be of real value, this document should not be stati
23、c but should be subject to periodic review. The ISA Standards and Practices Department is aware of the growing need for attention to the metric system of units in general, and the International System of Units (SI) in particular, in the preparation of instrumentation standards. The Department is fur
24、ther aware of the benefits to USA users of ISA standards of incorporating suitable references to the SI (and the metric system) in their business and professional dealings with other countries. Toward this end, this Department will endeavour to introduce SI-acceptable metric units in all new and rev
25、ised standards, recommended practices, and technical reports to the greatest extent possible. Standard for Use of the International System of Units (SI): The Modern Metric System, published by the American Society for Testing b) transportable equipment, and c) portable equipment. This standard is no
26、t intended to cover, but may provide useful information, for the following: a) equipment of laboratory or scientific type intended only for analysis or measurement purposes; b) equipment intended for underground mining applications (group I equipment); c) equipment intended only for process control
27、applications; d) equipment intended for applications in explosives processing and manufacture; e) equipment intended for the detection of a potentially toxic atmosphere resulting from dust or mist in air. FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTIONSeptember 30, 2013 ANSI/
28、ISA-92.00.02-2013 (R2017) ANSI/UL 920002 12 2 References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) a
29、pplies. ANSI/ISA-12.13.01, Performance Requirements for Combustible Gas Detectors ANSI/ISA-60079-29-2 (12.13.02), Explosive Atmospheres Part 29-2: Gas detectors Selection, installation, use and maintenance of detectors for flammable gases and oxygen ANSI/ISA-12.13.04, Performance Requirements for Op
30、en Path Combustible Gas Detectors ANSI/ISA-92.00.01, Performance Requirements for Toxic Gas Detectors ANSI/ISA-92.04.01, Performance Requirements for Instruments Used to Detect Oxygen-Deficient/Oxygen-Enriched Atmospheres National Institute for Occupational Safety and Health (NIOSH) Pocket Guide to
31、Chemical Hazards, Title 29, Part 1910.1000, Occupational Safety and Health Standards Threshold Limit Values for Chemical Substances in the Work Environment Adopted by the American Conference of Governmental Industrial Hygienists (ACGIH) Documentation for Immediately Dangerous to Life or Health Conce
32、ntrations (IDLHs) (NIOSH Taft Laboratories) OSHA 29 CFR1910, 1000 OSHA Regulation on Air Contamination API RP55 Conducting Oil and Gas Producing and Gas Processing Plant Operations Involving Hydrogen Sulfide MSDS sheets for all gases/vapors present and/or suspected in the site being monitored. 3 Ter
33、ms and definitions For the purposes of this document, the terms and definitions given in the standards referenced in Clause 2, as well as the following apply. Also, since this is intended as a stand-alone standard, certain definitions within ANSI/ISA-92.00.01 are repeated below for the convenience o
34、f the reader. 3.1 alarm: an audible, visual, or physical signal that alerts the instrument user of a dangerous gas concentration or instrument problem 3.1.1 false alarm: any alarm that is triggered by a condition other than the one(s) that the alarm function is set for (ex: high gas alarm caused by
35、RF interference or gas alarm caused by temperature changes) 3.2 alarm-only equipment: equipment having an alarm, but not having a meter or other indicating device. FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION13 ANSI/ISA-92.00.02-2013 (R2017) ANSI/UL 920002 September 30, 20
36、13 3.3 alarm setpoint: the selected gas concentration level(s) at which an alarm is activated. 3.4 ambient air: air to which the sensing element is normally exposed. 3.5 bump test application of test gas or other means of obtaining a response from the sensor to check its function. This may include t
37、he generation of an alarm. This check is performed without adjustments of sensitivity. NOTE This is also known as a “response check” or “functional check”. 3.6 calibration: the procedure to adjust the equipment for proper response (e.g., zero level, span, alarm, and range). 3.7 calibration gas: the
38、known concentration(s) of gas used to set the equipment span or alarm level(s). 3.8 clean air: air that is free of any substance that will adversely affect the operation of or cause a response from the equipment. 3.9 consumables: materials or components that are depleted or require periodic replacem
39、ent through normal use of the equipment. 3.10 control unit: that portion of a gas detection equipment that is not directly responsive to the gas, but which responds to the electrical signal obtained from one or more detector heads. This unit is intended to provide meter indication, alarm functions,
40、output contacts and/or alarm signal outputs when utilized with a detector head. 3.11 detector head: the gas responsive portion of a gas detection equipment located in the area where sensing the presence of gas is desired. It may be integral with or removed from its control unit. NOTE The detector he
41、ad may incorporate, in the same housing, circuitry such as signal processing or amplifying components or circuits in addition to the gas sensing element (sensor). 3.12 diffusion: a process by which the atmosphere being monitored is transported by natural r andom molecular movement to and from the ga
42、s-sensing element. FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTIONSeptember 30, 2013 ANSI/ISA-92.00.02-2013 (R2017) ANSI/UL 920002 14 3.13 field check with gas (response check): application of test gas to the sensor to check the response signal or the generation of an alarm,
43、without adjustments of zero, sensitivity, or alarm level. 3.14 full-scale: the maximum claimed operational level of the gas-detection equipment. 3.15 gas-detection equipment: an assembly of electrical and mechanical components (either a single integrated unit or a system comprised of two or more phy
44、sically separate but interconnected component parts) which senses the presence of a gas and responds by providing an alarm, indication, or other output functions. 3.16 gas-sensing element: the particular subassembly or element in the gas-detection equipment that, in the presence of a gas, produces a
45、 change in its electrical, chemical, or physical characteristics. 3.17 indication: a discrete communication of a measured value or alarm condition. 3.18 IDLH (Immediately Dangerous to Life and Health): the maximum concentration from which, in the event of respirator failure, one could escape within
46、30 minutes without a respirator and without experiencing any escape-impairing (e.g., severe eye irritation) or irreversible health effects. 3.19 mobile equipment: a continuous-monitoring equipment mounted on a vehicle, such as, but not limited to, a mining machine or industrial truck. 3.20 nominal v
47、oltage: the voltage given by manufacturers as the recommended operating voltage of their gas detection equipment. If a range (versus a specific voltage) is given, the nominal voltage shall be considered as the midpoint of the range, unless otherwise specified. 3.21 PEL (Permissible Exposure Limit):
48、time-weighted average (TWA) concentration that must not be exceeded during any 8-hour work shift of a 40-hour work week, as defined by the Occupational Safety and Health Administration (OSHA). 3.22 portable equipment: spot-reading or continuous duty equipment that has been designed to be readily car
49、ried from place to place and to be used while it is being carried. A portable equipment is battery powered and includes, but is not limited to a) a hand-held equipment, typically less than 1 kg, suitable for single-handed operation; FOR UL INTERNAL REFERENCE OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION15 ANSI/ISA-92.00.02-2013 (R2017) ANSI/UL 920002 September 30, 2013 b) personal monitors, similar in size and mass to the hand-held equipment, t
